This work presents an innovative display technique, which renders the image displaying capability to the plane of rotation by installing a rectilinear LED array. Basing on the persistence of vision of human eyes, the rotating scan of LEDs generates the stable display of images under the timing control. Because of the cyclic motions during the rotating scan, the timely display control signals have to be received wirelessly. Further considering the desire for long-time usages, the electricity supply is also required to be achieved through wireless energy harvest. As per these requirements, we present an implementation scenario based on the mutual inductance coupling of coaxial coils. During the rotation, the noncontact coils maintain the relative positions unchanged, thus preserve the reliable transmission of control signals and power supply in a stable electromagnetic environment. Also benefited from the mutual inductance coupling design, the construction of wireless communications is achieved by using a primitive micro-controller circuit. The hardware simplicity enables the setting up of ad hoc screens via a convenient refit of rotatable objects (e.g., vehicle wheels and propellers), and realizes fashionable and customizable consumer electronics with the additional information broadcasting function.

这项工作提出了一种创新的显示技术，该技术通过安装直线型LED阵列将图像显示功能呈现给旋转平面。基于人眼视觉的持久性，LED的旋转扫描可在定时控制下生成稳定的图像显示。由于旋转扫描期间的周期性运动，必须及时无线接收及时的显示控制信号。进一步考虑长期使用的需求，还需要通过无线能量收集来实现电力供应。根据这些要求，我们提出了一种基于同轴线圈互感耦合的实现方案。在旋转过程中，非接触线圈保持相对位置不变，从而在稳定的电磁环境中保持控制信号和电源的可靠传输。同样受益于互感耦合设计，通过使用原始的微控制器电路可以实现无线通信的结构。硬件的简单性使得可以通过方便地安装可旋转对象（例如，车轮和螺旋桨）来设置临时屏幕，并通过附加的信息广播功能实现时尚且可定制的消费类电子产品。